Güncel Gönderiler: Makale Koleksiyonu
Toplam kayıt 322, listelenen: 161-180
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New Types of Canal Surfaces in Minkowski 3-Space
(Springer Basel Ag, 2016)Canal surface is a surface formed as the envelope of a family of spheres whose centers lie on a space curve. In Minkowski 3-space, many authors studied canal surfaces. However, when one investigates the papers, it is obvious ... -
Approximation by modified Szasz-Durrmeyer operators
(Springer, 2016)The main goal of this paper is to introduce Durrmeyer modifications for the generalized Szasz-Mirakyan operators defined in (Aral et al., in Results Math 65:441-452, 2014). The construction of the new operators is based ... -
A new approach to the Assad-Kirk fixed point theorem
(Springer Basel Ag, 2016)In the present paper, considering the Wardowski's technique, we give a new approach to the Assad-Kirk fixed point theorem on metrically convex metric spaces. We also provide a nontrivial example showing that our result is ... -
On Kantorovich modification of (p, q)-Baskakov operators
(Springeropen, 2016)The concern of this paper is to introduce a Kantorovich modification of (p, q)-Baskakov operators and investigate their approximation behaviors. We first define a new (p, q)-integral and construct the operators. The rate ... -
A note on bi-periodic Fibonacci and Lucas quaternions
(Pergamon-Elsevier Science Ltd, 2016)Motivated by the our recent work in Tan et al., 2016, related to the bi-periodic Fibonacci quaternions, here we introduce the bi-periodic Lucas quaternions that gives the Lucas quaternions as a special case. We give the ... -
On Generalized Spacelike Mannheim Curves in Minkowski Space-Time
(Natl Acad Sciences India, 2016)In this paper, by taking consideration of all possible causal characters of the plane spanned by {B-1*; B-2* }, we give the necessary and sufficient conditions for spacelike curves in E-1(4) to be generalized spacelike ... -
General Helices with Timelike Slope Axis in Minkowski 3-Space
(Springer Basel Ag, 2016)In the present paper, we consider the general helices in Minkowski 3-space to have a constant timelike slope axis. As a result, we show that there exists no pseudo null helix with constant timelike slope axis or spacelike ... -
q-Voronovskaya type theorems for q-Baskakov operators
(Wiley, 2016)In the present paper, we prove quantitative q-Voronovskaya type theorems for q-Baskakov operators in terms of weighted modulus of continuity. We also present a new form of Voronovskaya theorem, that is, q-Gruss-Voronovskaya ... -
A Note on Boundedness of the Hardy-Littlewood Maximal Operator on Morrey Spaces
(Springer Basel Ag, 2016)In this paper we prove that the Hardy-Littlewood maximal operator is bounded on Morrey spaces M-1,M-lambda(R-n), 0 <= lambda < n for radial, non-increasing functions on R-n. -
Lyapunov-type inequalities for a fractional p-Laplacian equation
(Springeropen, 2016)In this paper, we present new Lyapunov-type inequalities for a fractional boundary value problem that models a turbulent flow in a porous medium. The obtained inequalities are used to obtain a lower bound for the eigenvalues ... -
(p, q)-Type Beta Functions Of Second Kind
(Tusi Mathematical Research Group, 2016)In the present article, we propose the (p, q)-variant of beta function of second kind and establish a relation between the generalized beta and gamma functions using some identities of the post-quantum calculus. As an ... -
On Timelike Bertrand Curves In Minkowski 3-Space
(Honam Mathematical Soc, 2016)In this paper, we study the timelike Bertrand curves in Minkowski 3-space. Since the principal normal vector of a timelike curve is spacelike, the Bertrand mate curve of this curve can be a timelike curve, a spacelike curve ... -
Approximation by k-th order modifications of Szász-Mirakyan operators
(Akademiai Kiado Rt, 2016)In this paper, we study the k-th order Kantorovich type modication of Szasz-Mirakyan operators. We first establish explicit formulas giving the images of monomials and the moments up to order six. Using this modification, ... -
On the modification of the Szasz-Durrmeyer operators
(Walter De Gruyter Gmbh, 2016)In this paper we consider the modification of Szasz-Durrmeyer operators based on the Jain basis function. Voronovskaya-type estimates of point-wise convergence along with its quantitative version based on the weighted ... -
On Ruled Surfaces with Pseudo Null Base Curve in Minkowski 3-Space
(Int Electronic Journal Geometry, 2016)In this paper, we classify the ruled surfaces with a pseudo null base curve in Minkowski 3-space as spacelike, timelike and lightlike surfaces and obtain the corresponding striction curve and distribution parameter. In ... -
On Tensor Product Surfaces of Lorentzian Planar Curves with Pointwise 1-Type Gauss Map
(Int Electronic Journal Geometry, 2016)In this article, we study the tensor product surfaces of two Lorentzian planar,non-null curves to have pointwise 1-type Gauss map. -
Reinvestigation of bromination of 8-substituted quinolines and synthesis of novel phthalonitriles
(Acg Publications, 2016)Bromination of a series of 8-substituted quinolines was reinvestigated and specified for optimum yields and isolation conditions. Mono bromination of 8-hydroxyquinoline (2a) and 8-aminoquinoline (2c) gave mixture of mono ... -
Fixed-Point Theorems for Integral-Type Contractions on Partial Metric Spaces
(Springer, 2016)We present some fixed-point results for single-valued mappings on partial metric spaces satisfying a contractive condition of integral type. -
Quantitative Voronovskaya-Type Results for Polynomially Bounded Functions
(Springer Basel Ag, 2016)We prove quantitative Voronovskaya-type results and Gruss-Voronovskaya inequalities for polynomially bounded functions. The results are given in terms of suitable K-functionals and applied to linking Szasz-Mirakyan and ... -
Quantitative q-Voronovskaya and q-Gruss-Voronovskaya-type results for q-Szasz operators
(Walter De Gruyter Gmbh, 2016)In the present paper, we mainly study quantitative Voronovskaya-type theorems for q-Szasz operators defined in [19]. We consider weighted spaces of functions and the corresponding weighted modulus of continuity. We obtain ...